<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
{{$res}}

<a href="/">
    正在返回首页
    <span style="color: red; font-weight: bold;"> 5 </span>
</a>


<script>
    var span = document.querySelector('span');
    var sec = 5;
    setInterval(()=>{
        if(sec>0){
            sec--;
            span.innerText = sec;
        }else{
            location.href = "/";
        }
    },1000);
</script>
</body>
</html>
